Nokea
CAVEOLATED CELLS all true except:
- A. Rare cells in gastric & intestinal mucosa may be chemoreceptor
- B. Their microvilli are long twice the length of those nearby cells
- C. Apical cell membrane shows deep tubular invaginations (Caveolae).
- D. Important cell for mucosal regeneration
Correct Answer: D
Rationale: Caveolated (tuft) cells are sensory, not regenerative; stem cells handle mucosal regeneration.
You may also like to solve these questions
How many nephrons are found in each kidney?
- A. approximately one hundred
- B. approximately one thousand
- C. approximately one million
- D. approximately ten million
Correct Answer: C
Rationale: Each kidney contains about one million nephrons, the functional units for filtration.
The loop of Henle pumps sodium ions from the ascending arm to the descending. What is this called?
- A. Counter current subtractor
- B. Counter current divider
- C. Counter current concentrator
- D. Counter current multiplier
Correct Answer: D
Rationale: The countercurrent multiplier in the loop of Henle concentrates urine by moving sodium ions.
Filiform papilla of tongue:
- A. Present at sulcus terminalis.
- B. Covered by Parakeratinized epith.
- C. Carry taste buds.
- D. Has underlying Von Ebner's glands.
Correct Answer: B
Rationale: Filiform papillae are covered by parakeratinized epithelium and are numerous on the anterior tongue, but they do not carry taste buds or have Von Ebner's glands.
In which order do these events occur in human nutrition?
- A. digestion→ ingestion→ absorption→ assimilation
- B. digestion→ ingestion→ assimilation→ absorption
- C. ingestion→ digestion→ absorption→ assimilation
- D. ingestion→ digestion→ assimilation→ absorption
Correct Answer: C
Rationale: Food is first ingested, then digested, absorbed into the bloodstream, and finally assimilated into cells.
Carbohydrates are comprised of carbon, , and oxygen.
- A. iron
- B. hydrogen
- C. nitrogen
- D. sulfur
Correct Answer: B
Rationale: Carbohydrates consist of carbon, hydrogen, and oxygen in a specific ratio.